"Turn off the Apple TV."
"Turn off low power mode."
"Stop navigating."
"Open [name of app I don't want to spend time finding in my iOS folders]"
"What song is this?" (Listens and usually is able to discover the name/artist of the song in the background.)
So when people say things like, "Siri is mostly useless," I think – wow, that is a very hyperbolic statement.
I think the big issue is that a lot of these aren't discoverable, and because Siri isn't very smart at natural language you won't discover them by asking for something similar like you could with Google Assistant. An LLM for parsing requests could be super interesting here.
(I say this as someone who has a Google Home that I use regularly, but mostly as a kitchen timer and music player.)
Personally, I'm become convinced a good talking/listening clock is actually a useful thing, but Google isn't providing it, and it sounds like Apple isn't either.
There’s also sending messages to people - you can send voice messages (“send a voice message to X”), which works decently well and avoids transcription failures.